How To Update My Passport Details On A United Airlines Booking?

To update passport details on your United Airlines booking, contact +1-833-770-4333 for instant help. The documentation support team +1-833-770-4333 can update your passport number, expiry date, or nationality. You can also modify details under “Manage Reservations” on United’s website. Always ensure your travel document information matches your passport to avoid check-in issues.